Synergistic stabilizer mixture

Stabilizer mixture comprising, for example, a compound of the formula ##STR1## and, for example, a compound of the formula ##STR2##

Skip to:  ·  Claims  ·  References Cited  · Patent History  ·  Patent History

Claims

1. A stabilizer mixture comprising at least two different compounds from the group consisting of components a), b), c), d), e), f), g) and k), where

component a) is at least one compound of the formula a-I-1 or a-I-3, ##STR62## in which R.sub.1 is methyl, octyl or cyclohexyl; component b) is at least one compound of the formula b-II, ##STR63## in which R.sub.9 is as defined for R.sub.1; component c) is at least one compound of the formula c-V, ##STR64## in which R.sub.9 is as defined above; component d) is at least one compound of the formula d-VI- 1, d-VI-2 or d-VI-3, ##STR65## in which R.sub.10 is as defined for R.sub.1 and n.sub.2 is a number from 2 to 25;
component e) is at least one compound of the formula e-VII, ##STR66## in which R.sub.18 is as defined for R.sub.1 and n.sub.3 is a number from 1 to 25;
component f) is a product obtainable by reacting a product, obtained by reaction between a polyamine of the formula
component k) is at least one compound of the formula k-XIII, ##STR70## in which R.sub.41 is as defined for R.sub.1 and n.sub.7 is a number from 1 to 25.

2. A stabilizer mixture according to claim 1, comprising at least one compound of component a) and at least one compound of component b), c), d), e), f), g), or k).

3. A stabilizer mixture according to claim 1, comprising at least one compound of component a) and at least one compound of component b), c), d), e), f), or g).

Referenced Cited
U.S. Patent Documents
3640928 February 1972 Murayama
3925376 December 1975 Chalmers et al.
4086204 April 25, 1978 Cassandrini et al.
4108829 August 22, 1978 Cassandrini et al.
4110334 August 29, 1978 Mayer et al.
4331586 May 25, 1982 Hardy
4340534 July 20, 1982 Wiezer et al.
4356307 October 26, 1982 Kelkenberg et al.
4408051 October 4, 1983 Hinsken et al.
4477615 October 16, 1984 Raspanti et al.
4529760 July 16, 1985 Feistner et al.
4689416 August 25, 1987 Ertt et al.
4692486 September 8, 1987 Gugumus
4857595 August 15, 1989 Kaymierzak et al.
4863981 September 5, 1989 Gugumus
4957953 September 18, 1990 Kikkawa et al.
5021485 June 4, 1991 Gugumus
5051458 September 24, 1991 Castanzi et al.
5182390 January 26, 1993 Sagawa et al.
5204473 April 20, 1993 Winter et al.
5439959 August 8, 1995 Rassamtt
Foreign Patent Documents
0252877 January 1988 EPX
0309402 March 1989 EPX
0345220 December 1989 EPX
0432495 June 1991 EPX
0449685 October 1991 EPX
0491659 June 1992 EPX
0632092 January 1995 EPX
262439 November 1988 DEX
4317672 December 1993 DEX
5879033 May 1983 JPX
2267499 December 1993 GBX
9212201 July 1992 WOX
9412544 June 1994 WOX
9422946 October 1994 WOX
Other references
  • Chem. Abst. 100: 104558n. Chem. Abst. 109:941995m. Chem. Abst. 120:324950n. CHem. Abst. 125:277237b. Derw. Abst 89-122983/17 of DD 262,439, Nov. 30, 1988. Chem. Abst. 111:58964u of DD 262,439, Nov. 30, 1988. Derw. Abst. 94-177274/22 of DE 4239437 & WO94/12544, May 26, 1994. Materials Safety Data Sheet 136504-96-6, Nov. 1, 1993. Research Disclosure, Jan. 1993 No. 345.
Patent History
Patent number: 5919399
Type: Grant
Filed: Jul 15, 1996
Date of Patent: Jul 6, 1999
Assignee: Ciba Specialty Chemicals Corporation (Tarrytown, NY)
Inventor: Fran.cedilla.ois Gugumus (Allschwil)
Primary Examiner: Kriellion S. Morgan
Attorney: Luther A. R. Hall
Application Number: 8/680,077
Classifications
Current U.S. Class: Oxygen Organic Compound Containing (252/403); 252/40031
International Classification: C09K 1522;